EntityHangings make a somewhat extensive calculation ever 100 ticks to check if they should die (obstruction etc). This patch makes this magic number configurable, allowing server owners to pick how often they want EntityHangings (e.g. ItemFrames) to tick. Higher values may provide a performance boost for Hanging-heavy servers.
Allows us much greater control over the Spigot portion of the code
and makes us more "proper"
Credit to @Dmck2b for originally passing the idea along a while back
